SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
��������������������������������������������������������������������Ŀ
� United States +1 408 438-8771 � United Kingdom +44 628 478011 �
��������������������������������������������������������������������Ĵ
� Germany +49 89 140-9331 � Singapore +65 227-2217 �
���������������������������������������������������������������������
(C)opyright 1991
ST-2502N (94241-502) Wren 6 HH SCSI and SCSI-2
SCSI Cable Power
������������������������ /���������\
���������������������͵:::::::::::::::::::::::1���͵ 0 0 0 0 �����
o o o o o o o o o o ������������������������; ��5�G�G�12�
o o o o o o o o o�oĿ ������1 ������1 ������1
R R R P M 4 2 1 � � � ������� ������� �������
����� � � ����� � � � Terminator SIPS
� � � � � � �
� � � � � � �� Terminator power +5v from the Bus (lower horizontal)
� � � � � ���� Terminator power +5v from Drive (vertical)
� � � � ������ Terminator power +5v to the Bus (vertical)
� � � ���������� Drive Select ID's
� � �������������� Motor Start option enable
� ���������������� Parity check enable
�������������������� Reserved Factory use
ST-2502N
94241-502 WREN 6 HH
UNFORMATTED CAPACITY (MB) ________________502
FORMATTED CAPACITY (xx SECTORS) (MB) _____435
AVERAGE SECTORS PER TRACK ________________69
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________12285
CYLINDERS ________________________________1755
HEADS ____________________________________7
DISCS ____________________________________4
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.875-2.75
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________64 Kbyte
SCSI-1: Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
SCSI-2: Read Look-Ahead, Adaptive,
Multi-Segmented Cache
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1459
BPI (BITS PER INCH) ______________________31674
AVERAGE ACCESS (ms) ______________________16
SINGLE TRACK SEEK (ms) ___________________3
MAX FULL SEEK (ms) _______________________33
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.0
+12V TYPICAL (amps) __1.0
+5V START-UP (amps) __0.75
+5V TYPICAL (amps) ___0.65
TYPICAL (watts) ______16
MAXIMUM (watts) ______58
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)
